This Universal SDS plus mixed set comes with 12 pieces and can be used with brick and concrete. All pieces are compatible with SDS plus drills with roto-stop Universal SDS Plus Mixed Drill Bit Set includes Point chisel, 20mm flat chisel, gouge chisel, 5mmx 110mm, 6mmx 110mm, 8mmx 160mm, 10mmx 160mm, 12mmx 160mm, 14mmx 200mm, 16mmx 210mm, 18mmx 300mm and 20mmx 450mm masonry drill bits Universal SDS Plus Mixed Drill Bit Set is a robust SDS plus set of the most common drill bits and chisels in a protective blow moulded storage case Mixed Drill Bit Set has tungsten carbide tipped blade tip type